/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
** 
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
** 
** A copy of the GNU GPL license version 2 is included in this package as 
** LICENSE.GPL.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
** See the GNU General Public License for more details.
**
** In addition, as a special exception Trolltech gives permission to link
** the code of this program with Qtopia applications copyrighted, developed
** and distributed by Trolltech under the terms of the Qtopia Personal Use
** License Agreement. You must comply with the GNU General Public License
** in all respects for all of the code used other than the applications
** licensed under the Qtopia Personal Use License Agreement. If you modify
** this file, you may extend this exception to your version of the file,
** but you are not obligated to do so. If you do not wish to do so, delete
** this exception statement from your version.
** 
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
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**********************************************************************/
#include "integerinstruction.h"

// Automatic type casting
Data *BaseIntegerInstruction::eval(Data *i) {
	integerNum = (IntegerData *)num;
	Data *ret = doEval((IntegerData *)i);
	return ret;
}

// Mathematical functions
Data * IntegerAdd::doEval(IntegerData *i) {
	i->set( integerNum->get() + i->get() );
	return i;
}
Data * IntegerSub::doEval(IntegerData *i) {
	i->set( i->get() - integerNum->get() );
	return i;
}
Data * IntegerMul::doEval(IntegerData *i) {
	i->set( i->get() * integerNum->get() );
	return i;
}
Data * IntegerDiv::doEval(IntegerData *i) {
	if (!integerNum->get()) {
                systemEngine->setError(eDivZero);
		qDebug("div by 0");
	} else
		integerNum->set( i->get() / integerNum->get() );
	return i;
}

